src/initscripts/init.d/sshd

   1 #!/bin/sh
   2 # Begin $rc_base/init.d/sshd
   3
   4 # Based on sysklogd script from LFS-3.1 and earlier.
   5 # Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org
   6
   7 #$LastChangedBy: bdubbs $
   8 #$Date: 2006-04-15 17:34:16 -0500 (Sat, 15 Apr 2006) $
   9
  10 . /etc/sysconfig/rc
  11 . $rc_functions
  12
  13 case "$1" in
  14     start)
  15         if [ ! -e "/etc/ssh/ssh_host_key" ]; then
  16                 boot_mesg "Generating SSH host key..."
  17                 ssh-keygen -qf /etc/ssh/ssh_host_key -N '' -t rsa1
  18                 evaluate_retval
  19         fi
  20
  21         for algo in rsa dsa ecdsa ed25519; do
  22                 keyfile="/etc/ssh/ssh_host_${algo}_key"
  23
  24                 # If the key already exists, there is nothing to do.
  25                 [ -e "${keyfile}" ] && continue
  26
  27                 case "${algo}" in
  28                         rsa)
  29                                 algo="rsa1"
  30                                 ;;
  31                 esac
  32
  33                 boot_mesg "Generating SSH key (${algo})..."
  34                 ssh-keygen -qf "${keyfile}" -N '' -t ${algo}
  35                 evaluate_retval
  36         done
  37
  38         [ -e "/var/ipfire/remote/enablessh" ] || exit 0 # SSH is not enabled
  39         boot_mesg "Starting SSH Server..."
  40         loadproc /usr/sbin/sshd
  41
  42         # Also prevent ssh from being killed by out of memory conditions
  43         (
  44                 sleep 3
  45                 pid=$(cat /var/run/sshd.pid 2>/dev/null)
  46                 [ -n "${pid}" ] && [ -e "/proc/${pid}/oom_score_adj" ] && \
  47                                         echo "-16" > "/proc/${pid}/oom_score_adj" || \
  48                                 [ -e "/proc/${pid}/oom_adj" ] && \
  49                                         echo "-16" > "/proc/${pid}/oom_adj"
  50         ) &
  51         ;;
  52
  53     stop)
  54         boot_mesg "Stopping SSH Server..."
  55         killproc /usr/sbin/sshd
  56         ;;
  57
  58     reload)
  59         boot_mesg "Reloading SSH Server..."
  60         reloadproc /usr/sbin/sshd
  61         ;;
  62
  63     restart)
  64         $0 stop
  65         sleep 1
  66         $0 start
  67         ;;
  68
  69     status)
  70         statusproc /usr/sbin/sshd
  71         ;;
  72
  73     *)
  74         echo "Usage: $0 {start|stop|reload|restart|status}"
  75         exit 1
  76         ;;
  77 esac
  78
  79 # End $rc_base/init.d/sshd